56 H. C. EFFLATOUN. 



6. METASPHENISCUS, Hendel. 

 Hend.. Wien. Entom. Zeitg., XXXIII. III. u. IV. 92. 116 (1914) 



Very close to Spheni.^comyia but distinguished from it, and 

 from other gênera, by the third antennal joint, which is at least 

 three times as long as broad, hy the white bristles of the occipital 

 row, and the gênerai metallic gronnd colour of the body. 



Head as high as broad ; face and frons as in Spheniscomyia, eyes 

 large, more or less rounded ; frons and epistoma a little prominent ; 

 cheeks narrow; antennae placed at the middle of the eyes, with the 

 third joint rounded at the tip, and three times as long as the second 

 joint; arista bare or at most mieroscopically pubescent; cephalic 

 chaetotaxy very strong and complète; or . strong;.^■.o/■. 2, /.or. 3; et. 

 very long; pr^ divergent ; ocp. very strong, white; genal bristle very 

 strong. Proboscis very short; palpi bristly. 



Thorax convex, somewhat more elongated than in the preceding 

 genus, of a black colour, but owing to its being entirely covered with 

 a fine grey tomentum, it appears a curions metallic grey ; chaetotaxy 

 strong and complète; 1 mpl. ; scutellum with four bristles, the a.i<c. 

 much weaker than the h. se. and converging at the apex. Abdomen 

 very similar to Sphemi.^romyin in shape and colour, with apical bris- 

 tles in the maie; ovipositor long, fairlv broad, and fhittened. Legs 

 fairly short; front femora with a row of bristles below; middle tibiae 

 with a single spur. 



Wiugs very broad and rather long, black, with hyaline inden- 

 tations at the front and hind borders; Ri short, ending well in front 

 of the radio-median cross-vein; this latter is not iierpendicular and 

 its distance from the médian cross-vein is equal to more than its 

 length; médian cross-vein perpendicular and long; posterior angle 

 of Cu cell shorter than M. cell; costal bristle double. 



TYPE : Trypptn orarilipr.- Loew (1862). 



This artificial genus was fouiHlcd l>v II.mkIcI (1914) on Eoew'-^ 

 species from Egypt. 



